Yeah the Bell 412 is used in a SAR role. It's main claim to fame is in the specialist medivac world.
Most of the helo's have a multi task role, SAR with medivac.
The Surf Life Saving (SLSA) organisation runs a few helo's.
Child Flight
Care Flight
Lloyd's aka CHC helo's run quite a few SAR helo's and medivac helo's.
Lloyd's/CHC
SLSA hours req'd
Info on SAR
I used Google, you may find other stuff. I hope this helps and I am sure the helo pilots will help out too.